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   1 /*
   2  * Wireless USB - Cable Based Association
   3  *
   4  * Copyright (C) 2006 Intel Corporation
   5  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License version
   9  * 2 as published by the Free Software Foundation.
  10  *
  11  */
  12 #ifndef __LINUX_USB_ASSOCIATION_H
  13 #define __LINUX_USB_ASSOCIATION_H
  14
  15
  16 /*
  17  * Association attributes
  18  *
  19  * Association Models Supplement to WUSB 1.0 T[3-1]
  20  *
  21  * Each field in the structures has it's ID, it's length and then the
  22  * value. This is the actual definition of the field's ID and its
  23  * length.
  24  */
  25 struct wusb_am_attr {
  26         __u8 id;
  27         __u8 len;
  28 };
  29
  30 /* Different fields defined by the spec */
  31 #define WUSB_AR_AssociationTypeId       { .id = 0x0000, .len =  2 }
  32 #define WUSB_AR_AssociationSubTypeId    { .id = 0x0001, .len =  2 }
  33 #define WUSB_AR_Length                  { .id = 0x0002, .len =  4 }
  34 #define WUSB_AR_AssociationStatus       { .id = 0x0004, .len =  4 }
  35 #define WUSB_AR_LangID                  { .id = 0x0008, .len =  2 }
  36 #define WUSB_AR_DeviceFriendlyName      { .id = 0x000b, .len = 64 } /* max */
  37 #define WUSB_AR_HostFriendlyName        { .id = 0x000c, .len = 64 } /* max */
  38 #define WUSB_AR_CHID                    { .id = 0x1000, .len = 16 }
  39 #define WUSB_AR_CDID                    { .id = 0x1001, .len = 16 }
  40 #define WUSB_AR_ConnectionContext       { .id = 0x1002, .len = 48 }
  41 #define WUSB_AR_BandGroups              { .id = 0x1004, .len =  2 }
  42
  43 /* CBAF Control Requests (AMS1.0[T4-1] */
  44 enum {
  45         CBAF_REQ_GET_ASSOCIATION_INFORMATION = 0x01,
  46         CBAF_REQ_GET_ASSOCIATION_REQUEST,
  47         CBAF_REQ_SET_ASSOCIATION_RESPONSE
  48 };
  49
  50 /*
  51  * CBAF USB-interface defitions
  52  *
  53  * No altsettings, one optional interrupt endpoint.
  54  */
  55 enum {
  56         CBAF_IFACECLASS    = 0xef,
  57         CBAF_IFACESUBCLASS = 0x03,
  58         CBAF_IFACEPROTOCOL = 0x01,
  59 };
  60
  61 /* Association Information (AMS1.0[T4-3]) */
  62 struct wusb_cbaf_assoc_info {
  63         __le16 Length;
  64         __u8 NumAssociationRequests;
  65         __le16 Flags;
  66         __u8 AssociationRequestsArray[];
  67 } __attribute__((packed));
  68
  69 /* Association Request (AMS1.0[T4-4]) */
  70 struct wusb_cbaf_assoc_request {
  71         __u8 AssociationDataIndex;
  72         __u8 Reserved;
  73         __le16 AssociationTypeId;
  74         __le16 AssociationSubTypeId;
  75         __le32 AssociationTypeInfoSize;
  76 } __attribute__((packed));
  77
  78 enum {
  79         AR_TYPE_WUSB                    = 0x0001,
  80         AR_TYPE_WUSB_RETRIEVE_HOST_INFO = 0x0000,
  81         AR_TYPE_WUSB_ASSOCIATE          = 0x0001,
  82 };
  83
  84 /* Association Attribute header (AMS1.0[3.8]) */
  85 struct wusb_cbaf_attr_hdr {
  86         __le16 id;
  87         __le16 len;
  88 } __attribute__((packed));
  89
  90 /* Host Info (AMS1.0[T4-7]) (yeah, more headers and fields...) */
  91 struct wusb_cbaf_host_info {
  92         struct wusb_cbaf_attr_hdr AssociationTypeId_hdr;
  93         __le16 AssociationTypeId;
  94         struct wusb_cbaf_attr_hdr AssociationSubTypeId_hdr;
  95         __le16 AssociationSubTypeId;
  96         struct wusb_cbaf_attr_hdr CHID_hdr;
  97         struct wusb_ckhdid CHID;
  98         struct wusb_cbaf_attr_hdr LangID_hdr;
  99         __le16 LangID;
 100         struct wusb_cbaf_attr_hdr HostFriendlyName_hdr;
 101         __u8 HostFriendlyName[];
 102 } __attribute__((packed));
 103
 104 /* Device Info (AMS1.0[T4-8])
 105  *
 106  * I still don't get this tag'n'header stuff for each goddamn
 107  * field...
 108  */
 109 struct wusb_cbaf_device_info {
 110         struct wusb_cbaf_attr_hdr Length_hdr;
 111         __le32 Length;
 112         struct wusb_cbaf_attr_hdr CDID_hdr;
 113         struct wusb_ckhdid CDID;
 114         struct wusb_cbaf_attr_hdr BandGroups_hdr;
 115         __le16 BandGroups;
 116         struct wusb_cbaf_attr_hdr LangID_hdr;
 117         __le16 LangID;
 118         struct wusb_cbaf_attr_hdr DeviceFriendlyName_hdr;
 119         __u8 DeviceFriendlyName[];
 120 } __attribute__((packed));
 121
 122 /* Connection Context; CC_DATA - Success case (AMS1.0[T4-9]) */
 123 struct wusb_cbaf_cc_data {
 124         struct wusb_cbaf_attr_hdr AssociationTypeId_hdr;
 125         __le16 AssociationTypeId;
 126         struct wusb_cbaf_attr_hdr AssociationSubTypeId_hdr;
 127         __le16 AssociationSubTypeId;
 128         struct wusb_cbaf_attr_hdr Length_hdr;
 129         __le32 Length;
 130         struct wusb_cbaf_attr_hdr ConnectionContext_hdr;
 131         struct wusb_ckhdid CHID;
 132         struct wusb_ckhdid CDID;
 133         struct wusb_ckhdid CK;
 134         struct wusb_cbaf_attr_hdr BandGroups_hdr;
 135         __le16 BandGroups;
 136 } __attribute__((packed));
 137
 138 /* CC_DATA - Failure case (AMS1.0[T4-10]) */
 139 struct wusb_cbaf_cc_data_fail {
 140         struct wusb_cbaf_attr_hdr AssociationTypeId_hdr;
 141         __le16 AssociationTypeId;
 142         struct wusb_cbaf_attr_hdr AssociationSubTypeId_hdr;
 143         __le16 AssociationSubTypeId;
 144         struct wusb_cbaf_attr_hdr Length_hdr;
 145         __le16 Length;
 146         struct wusb_cbaf_attr_hdr AssociationStatus_hdr;
 147         __u32 AssociationStatus;
 148 } __attribute__((packed));
 149
 150 #endif  /* __LINUX_USB_ASSOCIATION_H */